According to the Korean industry, Hyundai Heavy Industries, Samsung Heavy Industries, and Daewoo Shipbuilding and other large South Korean shipyards invested about 468.5 billion won (about 400 million U.S. dollars) in research and development in 2011, compared with 406.3 billion won last year. Compared to the increase of about 15%. Last year, Hyundai Heavy Industries invested a total of 232.4 billion won (up 19% year-on-year) in high-value-added ships, marine equipment, main engines, and wind and solar energy, and conducted research and development projects. Hyundai Heavy Industries also plans to invest a large amount of R&D projects this year in order to expand its distance from its competitors. This year, the investment in facilities and R&D will amount to about 1 trillion won.
Samsung Heavy Industries invested a total of 133.6 billion won in 2011 (up 9% year-on-year), which accounted for 1% of all sales. In addition, Daewoo Shipbuilding Marine invested a total of 120 billion won in shipbuilding and marine installations (up 17% year-on-year)
Presure seal Gate Valve has two type of sealing way, flexible wedge disc and parallel slab disc which normally used in the high pressure main streaming pipeline or high pressure bypass water feeding pipeline etc. The main function is to cut off or cut on the medium controlled by electric actuator or handwheel. The sealing principle of pressrue seal gate valve is sealing surface tight off under pressure and they are widely applicated in petrochmical, thermal power plant.
Pressure Seal Gate Valve,Flange Gate Valve,Power Station Valve,Wedge Disc Gate Valve
Yongjia South Trading Co.,Ltd , http://www.n-lvalve.com